Abstract
Nonlocal quantum correlations among the quantum subsystems play essential roles in quantum science. The violation of the Svetlichny inequality provides sufficient conditions of genuine tripartite nonlocality. We provide tight upper bounds on the maximal quantum value of the Svetlichny operators under local filtering operations, and present a qualitative analytical analysis on the hidden genuine nonlocality for three-qubit systems. We investigate in detail two classes of three-qubit states whose hidden genuine nonlocalities can be revealed by local filtering.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (Grant Nos. 11775306, 11701568, 11675113, and 12075159), the Fundamental Research Funds for the Central Universities (Grant Nos. 18CX02035A, 18CX02023A, and 19CX02050A), Beijing Municipal Commission of Education under Grant No. KZ201810028042, Beijing Natural Science Foundation (Z190005), Academy for Multidisciplinary Studies, Capital Normal University, and Shenzhen Institute for Quantum Science and Engineering, Southern University of Science and Technology (Grant No. SIQSE202005).
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Sun, LY., Xu, L., Wang, J. et al. Tight upper bound on the quantum value of Svetlichny operators under local filtering and hidden genuine nonlocality. Front. Phys. 16, 31501 (2021). https://doi.org/10.1007/s11467-020-1015-z
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DOI: https://doi.org/10.1007/s11467-020-1015-z